May 24 (UPI) -- A Massachusetts man said he arrived at his family's home to find someone had broken in and given the residence a deep cleaning without stealing anything.
Nate Roman, 44, said he returned to his Marlborough home last week with his 5-year-old son and the boy was the first to notice the back door was open.
"It was terrifying to know someone was in your house," Roman told WCVB-TV.
The homeowner said he was shocked to go inside and discover nothing had been taken, but instead the house had been cleaned.
"You could smell the cleaning chemicals," he told WBZ-TV. "I could tell something was wrong so I started looking around the house, and I found that my bathrooms had been cleaned."
Roman said every room had been cleaned -- except for the kitchen.
Marlborough Police said they are taking the investigation seriously, but they currently have no leads or suspects.
Roman said a clue left behind -- toilet paper folded into origami roses -- lead him to suspect a professional cleaning service had visited the wrong address.
"It was really the roses that really got me thinking that some professional cleaner had accidentally stumbled into my house," Roman said. "If I was going to judge the quality of a toilet paper rose I would call this high quality."